Shellshock Live Help

I bought the game already, but my computer got a bug, so I reset my computer, but it gave me a list of apps that I wouldn't have to purchase or download again after it reset and shellshock was one of them, well now it's saying I have to purchase it again, I need help figuring out how to reinstall it without paying the money and restarting all my progress I had on it again....

It's not there, and it's not giving me an option to reinstall it, I'm not paying for another damn game again twice because I had to reset my computer, I'm gonna have steam give me it free since I already paid the money for it, I was level 79 too, that took forever